Cooler



D. W. GRANT.

COOLER.

APPLICATION FILED JUNE 20. 1919.

Patented Apr. 13, 1920.

2 SHEETS-SHEET I- nimhmm INVENTOR ($3M.

WITNESSES "n. w. GRANT;

COOLER.

APPLICATION FILED JUNE 20, 1919.

Patented Apr. 13, 1920.

2 SHEETS-SHEET 2.

lllllll'l H WITNESSES UNTTED STATES PATENT OFFICE.

DENISON W. GRANT, OF FRANKLIN. PENNSYLVANIA, ASSIGNOR TO F000 OIL COMPANY, OF FRANKLIN, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

COOLER.

Application filed. June 20, 1919.

1" b all Mic/:2 it may concern:

Be it known that I, Dawson 'W. GRANT, a citizen of the United States, residing at Franklin, in the county of Venango and State of Pennsy vania, have invented a new and useful Improvement in Coolers, or which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in whieh- Figure 1 is a side elevation, partly in section of the preferred embodiment of the invention.

Fig. 2 is a front elevation of the device shown in Fig. 1.

Fig. 3 is an enlarged sectional view showing a modification.

Fig. 4 is a detail view showing the pipes for supplying water to the coolers, and

Fig. 5 is an enlarged section showing in detail the expansion joint at the top or" a cooler pipe.

In the refining of certain grades of petroleum, the oil is passed through filters containing fnllers earth, bone black or similar material, which purifies the oil. The filtering material becomes foul in use and is revivified and decarbonized by heating it, generally to about a dull red heat. The heated material should not be immediately put back into the oil filter, because it is hot enough to char any oil which might be run through it.

The object of the present invention is to provide a cooler for the fullers earth, or like material, which will quickly cool the material as it is taken from the burners or heaters so that it may be immediately put back into the filters. in view, the invention consists in a cooler for fullers earth or materials of such general character, as hereinafter described and particularly pointed out in the claims.

Referring to the illustrated embodiment of the invention: The cooler consists of a plurality of cooler pipes 2 through which the heated fullers earth descends by gravity. The pipes 2 are maintained cooled by a circulation of water over their exterior surfaces, so that the fullers earth as discharged from the cooler is sufficiently cool for immediate use.

The fullers earth as taken hot from the heater or burner in which it is revivified,

Specification of Letters Patent.

WVith this obj ect Patented Apr. 13, 1920.

Serial No. 305,570.

is lifted by a conveyer 3 and discharged into an elevated hopper 4. As shown in the drawing, the conveyor 3 is shown on the inside of a building wall 5, and the hopper 4 and cooler pipes 2 located in the open air outside of such wall. Extending from the bottom of the hopper 4 are the ccoler pipes 2 arranged as shown in the drawing in two banks, having a considerable number of pipes in each bank. These pipes extend straight down from the hopper 4 along the outside of the wall 5 to near the bottom of the wall where they are bent and pass through the wall at 6. The ends of the pipes are provided with valves 7, which control the feed of the fullers earth through the individual pipes. The valves 7 are adjusted so that the fullers earth descends through the pipes at the proper speed to be sutliciently cooled as discharged from the lower ends of the cooler pipes. The fullers earth is dry and flows easily through the pipes. The earth backs up in the pipes from the valve 7 to the bottom of the hopper so that each pipe is filled with a descending column of fullers earth. The lower ends of the pipes discharge into a bin 8 from which the cooled fullers earth is taken by a conveyer 9 to an elevated storage bin (not shown), from whence it is supplied to the oil filters.

A cooling circulation of water is maintained on the outside of the cooler pipes 2 by means of water pipes at 10, which extend across the banks of the cooler pipes 2, near the top thereof, and which direct small jets of water 11 against the pipes 2. A baflle plate 12 is provided near the bottom of the pipes to prevent the water from flowing along the pipes into the building. The pipes 2 are located outside of the building so that the heat may be dissipated to the open air.

The upper ends of the pipes 2, where they connect with the bottom of the hopper 4, are provided with expansion joints inclicated generally by reference numeral 13 (Fig. 1). The detail of one of these eX- pansion joints is shown in Fig. 5. A short nipple 14 is connected to the bottom 15 of the hopper. This nipple 14 has inner and outer skirts 16 and 17, respectively. A short extension 18 joined to the end of the pipe 2 fits into the annular space between the skirts 16 and 17 and has a sliding movement therewith. This forms a substantially waterproof joint and at the same time permits the pipes 2 to freely expand, since such pipes are subjected to varying temperatures.

In Fig. 3 is illustrated a modification in which the flow of fullers earth through the pipes 2 is controlled by a single valve 20 instead of by a plurality of valves 7, as shown in Fig. 1. As shown in Fig. 3 the individual pipes 2 are not provided with controlling valves but empty into a hopper 21, which has a single valve 20 controlling the discharge therefrom. This permits a larger valve 20 to be used and one less liable to become clogged, and also permits the regulation of the flow by the adjustment of a single valve.

While I have described my invention as a device for cooling fullers earth, it is obvious that it may be used for cooling other materials of such general character, such as bone black, sand, or the like.

It is to be understood that my invention is not limited to the details of construction illustrated, but may be embodied in other constructions within the scope of the following claims.

I claim:

1. A cooler for materials of the character herein described, comprising a plurality of cooling pipes through which the material descends by gravity, and means at the lower ends of the pipes to back up the material therein and cause it to descend at a predetermined rate; substantially as described.

2. The combination with a building wall of a cooler for materials of the character herein described, comprising a plurality of substantially vertical cooling pipes having their cooling portions located outside the building wall, and having at their lower ends provisions for discharging the material inside of the building wall, means for supplying a cooling circulation of water outside of the pipes at their upper ends, and a battle near the lower ends of the pipe to prevent the water from following the pipes through the building wall; substantially as described.

In testimony whereof, I have hereunto set my hand.

- DENISON JV. GRANT. 

